Average energy consumption calibration method and device for range-extended vehicle and range-extended vehicle

Abstract

The present application relates to a method, device and vehicle for calibrating the average energy consumption of an extended-range vehicle. The method comprises: when it is determined that the extended-range vehicle meets the preset range extender start-up conditions, starting the range extender and determining an energy consumption reference value based on the vehicle calibration parameters of the extended-range vehicle and the state of the extended-range vehicle when the range extender is started; after starting the range extender, determining the initial average electricity consumption and initial average fuel consumption corresponding to the extended-range vehicle based on the vehicle calibration parameters, vehicle energy consumption parameters and real-time vehicle speed of the extended-range vehicle; calibrating the initial average electricity consumption and initial average fuel consumption using the energy consumption reference value to obtain the average electricity consumption and average fuel consumption. The present application refers to the vehicle's power status, vehicle mode, and combines the control of the range extender to use the energy consumption reference value to calibrate the initial average electricity consumption and initial average fuel consumption, so that the sum of the average electricity consumption and average fuel consumption obtained after calibration is closer to the actual average energy consumption per 100 kilometers of the extended-range vehicle.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a method and device for calibrating average energy consumption of a range-extended vehicle, and the range-extended vehicle. Background Art

[0002] Currently, drivers of extended-range vehicles (ERVs) constantly monitor the average energy consumption (electricity and fuel) displayed on the central control screen, adjusting their driving pace accordingly. For example, if the average energy consumption is too high, the driver can reduce speed to lower the average energy consumption and conserve the vehicle's electricity or fuel.

[0003] In theory, the following formula can be used to calculate the average power consumption and average fuel consumption:

[0004] Average power consumption = power consumption of the trip distance / distance traveled, unit is kwh / 100km;

[0005] Average fuel consumption = fuel consumption of the trip distance / distance traveled, unit is L / 100km.

[0006] For extended-range vehicles, when they are first started, they generally operate on pure electric power. The range extender is not activated until the battery pack's charge level is below the target SOC (State of Charge) to allow the range extender to generate electricity and drive the vehicle. However, as the extended-range vehicle is used, the battery pack's charge level gradually decreases. If the battery pack's charge level falls below the target SOC corresponding to the vehicle mode when the extended-range vehicle is woken up, activating the range extender will result in poor NVH (Noise, Vibration, Harshness) performance. Furthermore, the extended-range vehicle consumes more energy when starting because the battery pack often needs to participate in driving the vehicle. The battery pack and the range extender jointly drive the extended-range vehicle, resulting in higher average power and fuel consumption. The combined effect of the two far exceeds the vehicle's actual energy consumption per 100 kilometers. Summary of the Invention

[0007] The present application provides a method and device for calibrating the average energy consumption of an extended-range vehicle, and an extended-range vehicle, to solve the problem that when the battery pack and the range extender jointly drive the extended-range vehicle, the average power consumption and the average fuel consumption are both high, and the sum of the two far exceeds the actual energy consumption of the vehicle per 100 kilometers.

[0008] In order to solve the above technical problems, the technical solution of this application is solved through the following embodiments:

[0009] An embodiment of the present application also provides a method for calibrating the average energy consumption of an extended-range vehicle, comprising: when it is determined that the extended-range vehicle meets a preset range extender start-up condition, starting the range extender and determining an energy consumption reference value based on vehicle calibration parameters of the extended-range vehicle and a state of the extended-range vehicle when the range extender is started; after starting the range extender, determining an initial average power consumption and an initial average fuel consumption corresponding to the extended-range vehicle based on the vehicle calibration parameters, vehicle energy consumption parameters, and real-time vehicle speed of the extended-range vehicle; and calibrating the initial average power consumption and the initial average fuel consumption using the energy consumption reference value to obtain the average power consumption and average fuel consumption of the extended-range vehicle.

[0010] Wherein, the determining whether the range-extended vehicle meets the preset range-extender start-up condition includes: after the range-extended vehicle is awakened, reading the current vehicle mode, battery pack power and real-time vehicle speed of the range-extended vehicle in real time; obtaining the target battery state of charge value and speed threshold corresponding to the current vehicle mode of the range-extended vehicle, and determining the power threshold corresponding to the vehicle mode at the current ambient temperature; wherein the target battery state of charge value is greater than the power threshold; if the battery pack power is less than or equal to the power threshold, or, when the battery pack power is greater than the power threshold and less than the target battery state of charge value, if the range-extended vehicle is stationary or the real-time vehicle speed is greater than the speed threshold, then it is determined that the range-extender start-up condition is met; otherwise, it is determined that the range-extender start-up condition is not met.

[0011] Wherein, before determining the power threshold corresponding to the vehicle mode at the current ambient temperature, the method further includes: controlling the range-extended vehicle to travel a preset mileage at the speed threshold in the vehicle mode within each preset ambient temperature range; wherein the power of the battery pack of the range-extended vehicle is the target battery state of charge value corresponding to the vehicle mode, and the interior temperature of the range-extended vehicle is the optimal operating temperature corresponding to the battery pack; during the driving of the range-extended vehicle, prohibiting the range extender from starting and obtaining the battery state of charge value consumed by the battery pack within the preset mileage; and using the difference between the target battery state of charge value and the battery state of charge value as the power threshold corresponding to the vehicle mode in the ambient temperature range.

[0012] Among them, the vehicle calibration parameters include: the average power consumption per unit mileage of the vehicle and the preset initial distance traveled by the vehicle; the vehicle energy consumption parameters include: the real-time voltage and real-time current of the battery pack; the initial average power consumption and initial average fuel consumption corresponding to the extended-range vehicle are determined based on the vehicle calibration parameters, vehicle energy consumption parameters and real-time speed of the extended-range vehicle, including: integrating and calculating the actual power consumption of the extended-range vehicle based on the real-time voltage and real-time current of the battery pack; and integrating and calculating the actual mileage of the extended-range vehicle based on the real-time speed of the extended-range vehicle; adopting a pull-average calculation method, based on the vehicle unit mileage of the extended-range vehicle The first candidate average power consumption corresponding to the extended-range vehicle is calculated based on the average power consumption per mile, the initial distance traveled by the vehicle, the actual power consumption and the actual mileage; the second candidate average power consumption corresponding to the extended-range vehicle is calculated based on the actual power consumption and the actual mileage of the extended-range vehicle; if the range extender is started when the extended-range vehicle is traveling in pure electric mode, the minimum value between the first candidate average power consumption and the second candidate average power consumption is used as the initial average power consumption; if the range extender is started after the extended-range vehicle is awakened, the second candidate average power consumption is used as the initial average power consumption corresponding to the extended-range vehicle.

[0013] wherein the vehicle calibration parameters include: an average fuel consumption per unit mileage of the vehicle and a preset initial distance traveled by the vehicle; the vehicle energy consumption parameters include: a real-time fuel injection amount of the extended-range vehicle; and determining the initial average electricity consumption and initial average fuel consumption corresponding to the extended-range vehicle based on the vehicle calibration parameters, the vehicle energy consumption parameters, and the real-time vehicle speed of the extended-range vehicle includes: integrally calculating the real fuel consumption of the extended-range vehicle based on the real-time fuel injection amount of the extended-range vehicle; and integrally calculating the real mileage of the extended-range vehicle based on the real-time vehicle speed of the extended-range vehicle; calculating a first candidate average fuel consumption corresponding to the extended-range vehicle based on the average fuel consumption per unit mileage of the extended-range vehicle, the initial distance traveled by the vehicle, the real fuel consumption, and the real mileage using a rolling average calculation method; calculating a second candidate average fuel consumption corresponding to the extended-range vehicle based on the real fuel consumption and the real mileage of the extended-range vehicle; and taking the minimum value of the first candidate average fuel consumption and the second candidate average fuel consumption as the initial average fuel consumption corresponding to the extended-range vehicle.

[0014] Wherein, the vehicle calibration parameters include: the average fuel consumption per unit mileage of the vehicle and the average electricity consumption per unit mileage of the vehicle; the energy consumption reference value is determined according to the vehicle calibration parameters of the extended-range vehicle and the state of the extended-range vehicle when the range extender is started, including: if the range extender is started when the extended-range vehicle is running purely on electric power, then according to the vehicle calibration parameters, vehicle energy consumption parameters and real-time vehicle speed of the extended-range vehicle, the initial average electricity consumption and initial average fuel consumption corresponding to the extended-range vehicle are determined; the initial average electricity consumption is compared with the initial average fuel consumption converted to electricity consumption; if the initial average electricity consumption is greater than If the initial average fuel consumption is converted into electricity consumption, the average electricity consumption per unit mileage of the vehicle is used as the energy consumption benchmark value; otherwise, the average fuel consumption per unit mileage of the vehicle is used as the energy consumption benchmark value; if the range extender is started after the extended-range vehicle is awakened, the average fuel consumption displayed after the extended-range vehicle is awakened is obtained; the average fuel consumption is compared with the average fuel consumption per unit mileage of the vehicle; if the average fuel consumption is greater than the average fuel consumption per unit mileage of the vehicle, the average fuel consumption is used as the energy consumption benchmark value; otherwise, the average fuel consumption per unit mileage of the vehicle is used as the energy consumption benchmark value.

[0015] Among them, if the range extender is started when the extended-range vehicle is traveling in pure electric mode, the use of the energy consumption reference value to calibrate the initial average electric consumption and the initial average fuel consumption includes: calculating the sum of the initial average electric consumption and the initial average fuel consumption converted into electric consumption; if the sum is less than or equal to the average electric consumption per unit mileage of the vehicle, using the initial average electric consumption as the average electric consumption, and using the initial average fuel consumption as the average fuel consumption; if the sum is greater than the average electric consumption per unit mileage of the vehicle, when the average electric consumption per unit mileage of the vehicle is used as the energy consumption reference value, using the initial average electric consumption as the average electric consumption, converting the difference between the initial average electric consumption and the energy consumption reference value into fuel consumption, and using the converted fuel consumption as the average fuel consumption; when the average fuel consumption per unit mileage of the vehicle is used as the energy consumption reference value, converting the difference between the initial average electric consumption and the energy consumption reference value into electric consumption, using the converted electric consumption as the average electric consumption, and using the initial average fuel consumption as the average fuel consumption.

[0016] Among them, if the range extender is started after the range-extended vehicle is awakened, the use of the energy consumption reference value to calibrate the initial average electricity consumption and the initial average fuel consumption includes: calculating the sum of the initial average fuel consumption and the initial average electricity consumption converted into fuel consumption; if the sum is less than or equal to the average fuel consumption per unit mileage of the vehicle, using the initial average fuel consumption as the average fuel consumption, and using the initial average electricity consumption as the average electricity consumption; if the sum is greater than the average fuel consumption per unit mileage of the vehicle, converting the difference between the initial average fuel consumption and the average fuel consumption per unit mileage of the vehicle into electricity consumption and using the converted electricity consumption as the average electricity consumption, and using the average fuel consumption per unit mileage of the vehicle as the average fuel consumption.

[0017] The calibrating the initial average electricity consumption and the initial average fuel consumption by using the energy consumption reference value includes: integrally calculating the actual mileage of the extended-range vehicle according to the real-time speed of the extended-range vehicle; and calibrating the initial average electricity consumption and the initial average fuel consumption by using the energy consumption reference value starting from when the actual mileage is less than the initial vehicle traveled distance preset in the vehicle calibration parameters, until the actual mileage is greater than or equal to the initial vehicle traveled distance.

[0018] An embodiment of the present application further provides an average energy consumption calibration device for a range-extended vehicle, comprising: a start-up determination module for, when determining that the range-extended vehicle meets preset range-extender start-up conditions, starting the range extender and determining an energy consumption reference value based on the vehicle calibration parameters of the range-extended vehicle and the state of the range-extended vehicle when the range extender is started; an energy consumption determination module for, after starting the range extender, determining the initial average power consumption and initial average fuel consumption corresponding to the range-extended vehicle based on the vehicle calibration parameters, vehicle energy consumption parameters, and real-time vehicle speed of the range-extended vehicle; and an energy consumption calibration module for calibrating the initial average power consumption and the initial average fuel consumption using the energy consumption reference value to obtain the average power consumption and average fuel consumption of the range-extended vehicle.

[0019] An embodiment of the present application also provides an extended-range vehicle, comprising: at least one communication interface; at least one bus connected to the at least one communication interface; at least one processor connected to the at least one bus; and at least one memory connected to the at least one bus, wherein the processor is configured to: execute the average energy consumption calibration program for the extended-range vehicle stored in the memory to implement the average energy consumption calibration method for the extended-range vehicle described in any one of the above.

[0020] The above technical solution provided by the embodiment of the present application has the following advantages over the prior art: the method provided by the embodiment of the present application can start the range extender when it is determined that the range extender meets the preset range extender start-up conditions, and determine the energy consumption reference value based on the vehicle calibration parameters of the range extender and the state of the range extender when the range extender is started; after starting the range extender, determine the initial average power consumption and initial average fuel consumption corresponding to the range extender based on the vehicle calibration parameters, vehicle energy consumption parameters and real-time vehicle speed of the range extender; calibrate the initial average power consumption and the initial average fuel consumption using the energy consumption reference value to obtain the average power consumption and average fuel consumption of the range extender. The embodiment of the present application refers to the battery status of the vehicle, the vehicle mode, and combines the control of the range extender to calibrate the initial average power consumption and the initial average fuel consumption using the energy consumption reference value, so that the sum of the calibrated average power consumption and average fuel consumption is maintained at a certain level, so that the average energy consumption obtained after calibration is closer to the actual average energy consumption per 100 kilometers of the range extender. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0024] Figure 1 This is a flow chart of a method for calibrating average energy consumption of a range-extended vehicle according to an embodiment of the present application;

[0025] Figure 2 Flowchart of the steps for determining the energy consumption baseline value according to one embodiment of the present application;

[0026] Figure 3 Flowchart of steps for determining initial average power consumption according to one embodiment of the present application;

[0027] Figure 4 Flowchart of steps for determining initial average fuel consumption according to one embodiment of the present application;

[0028] Figure 5This is a structural diagram of an average energy consumption calibration device for a range-extended vehicle according to an embodiment of the present application;

[0029] Figure 6 1 is a structural diagram of a range-extended vehicle according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] An embodiment of the present application provides a method for calibrating the average energy consumption of a range-extended vehicle. Figure 1 The figure is a flow chart of a method for calibrating average energy consumption of a range-extended vehicle according to an embodiment of the present application.

[0033] Step S110 , when it is determined that the range-extended vehicle meets the preset range-extender start-up conditions, the range-extender is started and an energy consumption reference value is determined according to the vehicle calibration parameters of the range-extended vehicle and the state of the range-extended vehicle when the range-extender is started.

[0034] The range extender start condition is used to measure whether the range extender needs to be started for the range extender vehicle.

[0035] The vehicle calibration parameters are system parameters based on the extended-range vehicle. For example, the vehicle calibration parameters include: the average power consumption per unit mileage (M) and the average fuel consumption per unit mileage (L).

[0036] The states of the extended-range vehicle when the range extender is started include: the extended-range vehicle starts the range extender when it is running in pure electric mode, and the extended-range vehicle starts the range extender after being awakened.

[0037] The energy consumption baseline value is a parameter used to calibrate the initial average electricity consumption and initial average fuel consumption. Different strategies are used to determine the energy consumption baseline value in different states.

[0038] The specific process of determining the start-up conditions of the range extender and the method of determining the energy consumption baseline value will be described later, so they will not be repeated here.

[0039] Step S120 , after starting the range extender, determining the initial average power consumption and initial average fuel consumption corresponding to the range extender vehicle according to the vehicle calibration parameters, vehicle energy consumption parameters and real-time vehicle speed of the range extender vehicle.

[0040] The vehicle energy consumption parameters are used to reflect the energy consumption of the extended-range vehicle. For example, the vehicle energy consumption parameters include the real-time voltage and real-time current of the battery pack, the real-time fuel injection volume of the extended-range vehicle, and other parameters.

[0041] The initial average power consumption is the average power consumption of the extended-range vehicle before calibration. The initial average power consumption can be determined based on the real-time voltage and current of the battery pack, the real-time speed of the extended-range vehicle, the average power consumption per unit mileage M of the extended-range vehicle, and the initial distance traveled by the vehicle.

[0042] The initial average fuel consumption is the average fuel consumption of the extended-range vehicle before calibration. The initial average fuel consumption can be determined based on the real-time fuel injection volume of the extended-range vehicle, the real-time speed of the extended-range vehicle, the average fuel consumption per unit mileage (L) of the extended-range vehicle, and the initial distance traveled by the vehicle.

[0043] Step S130 , calibrating the initial average electricity consumption and the initial average fuel consumption using the energy consumption reference value to obtain the average electricity consumption and the average fuel consumption of the range-extended vehicle.

[0044] In this embodiment of the present application, the average energy consumption of the extended-range vehicle = average electricity consumption + average fuel consumption. The initial average electricity consumption and initial average fuel consumption are calibrated using the energy consumption baseline value to maintain the average energy consumption of the extended-range vehicle at a certain level. For example, the energy consumption baseline value is maintained. The specific calibration process will be described later and is not detailed here.

[0045] In this embodiment of the present application, the latest average power consumption and average fuel consumption are updated on the central control display screen of the extended-range vehicle at predetermined intervals. The updated mileage can be an empirical value or a value obtained through experimentation. For example, the average power consumption and average fuel consumption are updated every 100 meters traveled by the extended-range vehicle.

[0046] In an embodiment of the present application, when it is determined that the range-extended vehicle meets preset range-extender start conditions, the range extender is started and an energy consumption reference value is determined based on the vehicle calibration parameters of the range-extended vehicle and the state of the range-extended vehicle when the range extender is started; after starting the range extender, an initial average power consumption and an initial average fuel consumption corresponding to the range-extended vehicle are determined based on the vehicle calibration parameters, vehicle energy consumption parameters, and real-time vehicle speed of the range-extended vehicle; and the initial average power consumption and the initial average fuel consumption are calibrated using the energy consumption reference value to obtain the average power consumption and the average fuel consumption of the range-extended vehicle. The embodiment of the present application does not adopt the theoretical calculation method of average power consumption and average fuel consumption, namely: average power consumption = power consumption of travel distance / travel distance, in kwh / 100km; average fuel consumption = fuel consumption of travel distance / travel distance, in L / 100km; the embodiment of the present application refers to the vehicle's power status, vehicle mode, and combined with the control of the range extender, and uses the energy consumption reference value to calibrate the initial average power consumption and the initial average fuel consumption, so that the sum of the calibrated average power consumption and average fuel consumption is maintained at a certain level, so that the average energy consumption obtained after calibration is closer to the actual average energy consumption per 100 kilometers of the extended-range vehicle, providing users with a more reasonable energy consumption reference value, and avoiding unnecessary misunderstandings by users due to the sum of the average power consumption and average fuel consumption deviating from the actual average energy consumption per 100 kilometers when the battery pack and the range extender jointly drive the vehicle.

[0047] In order to make the embodiment of the present application clearer, the average energy consumption calibration method of the embodiment of the present application will be further described below.

[0048] In this embodiment of the present application, after the range-extended vehicle is awakened, the vehicle mode, battery pack charge, and real-time vehicle speed of the range-extended vehicle are read in real time. Based on the current vehicle mode, battery pack charge, and real-time vehicle speed of the range-extended vehicle, it is determined whether the range-extended vehicle has met the preset range extender start conditions.

[0049] The range-extended vehicle is awakened when: the range-extended vehicle is started.

[0050] The battery pack capacity refers to the capacity of the power module (battery pack) that supplies power to the extended-range vehicle.

[0051] The types of vehicle modes include: fuel priority and pure electric priority. Each vehicle mode corresponds to a target SOC value. The target SOC value is a TBC value (To Be Confirmed, a value to be set). For example: the target SOC value corresponding to fuel priority is a first SOC value; wherein the first SOC value is an experience value or a value obtained through experiments, and when set, 50% < first SOC value < 100%. The target SOC value corresponding to pure electric priority is a second SOC value; wherein the second SOC value is also an experience value or a value obtained through experiments, and when set, 20% < second SOC value < 30%. Furthermore, in different vehicle modes, whether to start the range extender is determined based on the target SOC values corresponding to different vehicle modes, and after the range extender is started, the battery pack charge is maintained at the target SOC value.

[0052] After reading the current vehicle mode, battery pack charge, and real-time vehicle speed of the range-extended vehicle, determining whether the range-extended vehicle meets the preset range extender start-up conditions under the following circumstances includes: after the range-extended vehicle is awakened, reading the current vehicle mode, battery pack charge, and real-time vehicle speed of the range-extended vehicle in real time; obtaining a target SOC value and a vehicle speed threshold corresponding to the current vehicle mode of the range-extended vehicle, and determining a charge threshold corresponding to the vehicle mode at the current ambient temperature; wherein the target SOC value is greater than the charge threshold; if the battery pack charge is less than or equal to the charge threshold, or, when the battery pack charge is greater than the charge threshold and less than the target SOC value, if the range-extended vehicle is stationary or the real-time vehicle speed is greater than the vehicle speed threshold, determining that the range extender start-up conditions are met; otherwise, determining that the range extender start-up conditions are not met. When it is determined that the range-extended vehicle meets the range extender start-up conditions, starting the range extender of the range-extended vehicle.

[0053] The stationary state means that the range-extended vehicle is not moving.

[0054] The vehicle speed threshold is an empirical value or a value obtained through experiments. For example, the vehicle speed threshold can be set to 30 km / h.

[0055] The battery threshold can also be determined based on the vehicle mode and ambient temperature. Furthermore, the battery threshold is a value related to the vehicle mode and ambient temperature. For each vehicle mode, before determining the battery threshold corresponding to the vehicle mode at the current ambient temperature, battery thresholds corresponding to each vehicle mode at multiple ambient temperature ranges can be pre-set.

[0056] Within the same ambient temperature range, the power thresholds corresponding to different vehicle modes may be different. The power threshold corresponding to fuel priority is the first power threshold, and the power threshold corresponding to pure electric priority is the second power threshold. After the first SOC value and the second SOC value are determined, the first power threshold and the second power threshold are dynamically changed based on the ambient temperature. The ambient temperature range can be determined through testing. For example: for each vehicle mode, the power threshold is measured at each ambient temperature, and multiple ambient temperatures and their corresponding power thresholds can be divided into ambient temperature ranges and power thresholds corresponding to the ambient temperature ranges. The ambient temperature range includes at least one ambient temperature. That is: if multiple consecutive ambient temperatures correspond to a power threshold, then the ambient temperature range covers the multiple consecutive ambient temperatures.

[0057] Specifically, the following steps are performed for each vehicle mode: within each preset ambient temperature range, the range-extended vehicle is controlled to travel a preset mileage at the speed threshold in the vehicle mode; wherein the charge level of the battery pack of the range-extended vehicle is a target SOC value corresponding to the vehicle mode, and the interior temperature of the range-extended vehicle is an optimal operating temperature corresponding to the battery pack; while the range-extended vehicle is traveling, the range extender is prohibited from starting and the SOC value consumed by the battery pack within the preset mileage is obtained; and the difference between the target SOC value and the SOC value is used as the charge threshold corresponding to the vehicle mode in the ambient temperature range. The length of the preset mileage may be an empirical value or a value obtained through experimentation.

[0058] For example: when the ambient temperature is minus 30 degrees Celsius, the temperature inside the vehicle is set as the optimal operating temperature of the battery pack. The vehicle is driven in fuel priority mode, and the range extender is not started at the first SOC value. In addition, a preset mileage (such as 3km, TBC) is driven at a speed threshold. The SOC value consumed within the preset mileage is obtained, and the difference between the first SOC value and the SOC value is determined. The difference is used as the power threshold of the fuel priority mode when the ambient temperature is minus 30 degrees Celsius.

[0059] Furthermore, when the ambient temperature is less than the minimum value among all ambient temperature ranges, the power threshold is determined to be the power threshold corresponding to the ambient temperature range in which the minimum value is located. When the ambient temperature is greater than the maximum value among all ambient temperature ranges, the power threshold is determined to be the power threshold corresponding to the ambient temperature range in which the maximum value is located.

[0060] Based on the measurement results, the power thresholds corresponding to the vehicle mode in multiple ambient temperature ranges can be set, and based on the setting content, the power threshold corresponding to the current vehicle mode of the extended-range vehicle in the current ambient temperature can be queried. In addition, based on the current vehicle mode of the extended-range vehicle, the battery pack power, the queried power threshold, and the real-time vehicle speed, it is determined whether the extended-range vehicle needs to start the range extender.

[0061] When the current vehicle mode is fuel priority, if the current battery pack charge is less than or equal to the charge threshold, the range extender will be activated to generate electricity, even if the range-extended vehicle meets the range extender activation conditions at a standstill, sacrificing NVH to maintain charge. If the current battery pack charge is greater than the charge threshold and less than the first SOC value, the range extender will not be activated, taking into account the impact of NVH, and the range extender will remain in pure electric driving when the range-extended vehicle is stationary or the real-time vehicle speed is less than or equal to the speed threshold. When the real-time vehicle speed exceeds a certain speed threshold, the range extender will be activated to generate electricity.

[0062] When the current vehicle mode is pure electric priority, if the current battery pack charge is less than or equal to the charge threshold, the range extender will be activated to generate electricity, even if the range-extended vehicle meets the range extender activation conditions at a standstill, sacrificing NVH to maintain the charge effect. If the current battery pack charge is greater than the charge threshold and less than the second SOC value, the range extender will not be activated when the range-extended vehicle is stationary or the real-time vehicle speed is less than or equal to the speed threshold, taking into account the impact of NVH. When the real-time vehicle speed exceeds a certain speed threshold, the range extender will be activated to generate electricity.

[0063] In this embodiment of the present application, a range extender stop condition can also be pre-set. The range extender condition is: when the battery pack power level is greater than the power threshold and less than the target SOC value, and the real-time vehicle speed is greater than the speed threshold, the range extender is started, the real-time vehicle speed is monitored, and when the real-time vehicle speed is less than a preset stop threshold, the range extender is stopped. The stop threshold is greater than zero and less than the vehicle speed threshold.

[0064] When the range extender is started, it is also necessary to determine an energy consumption reference value based on the vehicle calibration parameters of the range-extended vehicle and the state of the range-extended vehicle when the range extender is started.

[0065] Figure 2 Flowchart of the steps for determining the energy consumption baseline value according to one embodiment of the present application.

[0066] Step S210, determining whether the range extender is started when the range-extended vehicle is running in pure electric mode; if yes, executing step S220; if not, executing step S240.

[0067] Step S220: If the range extender is started when the range-extended vehicle is running purely on electricity, the initial average power consumption and initial average fuel consumption corresponding to the range-extended vehicle are determined according to the vehicle calibration parameters, vehicle energy consumption parameters and real-time vehicle speed of the range-extended vehicle.

[0068] In this embodiment, the vehicle calibration parameters include: average fuel consumption per unit mileage L and average electricity consumption per unit mileage M of the vehicle.

[0069] Vehicle average fuel consumption per unit mileage L = (JK) / H; where J represents the vehicle's fuel tank capacity, K represents the remaining fuel in the vehicle's fuel tank, and H represents the fuel range of the extended-range vehicle under the WLTC (Worldwide Harmonized Light Vehicles Test Cycle) conditions.

[0070] The average power consumption per unit mileage of the vehicle is M = rated capacity of the battery pack / I; where I represents the pure electric driving range of the extended-range vehicle under the WLTC operating conditions.

[0071] Step S230, compare the initial average electricity consumption and the initial average fuel consumption converted into electricity consumption; if the initial average electricity consumption is greater than the initial average fuel consumption converted into electricity consumption, then the average electricity consumption per unit mileage M of the vehicle is used as the energy consumption reference value; otherwise, the average fuel consumption per unit mileage L of the vehicle is used as the energy consumption reference value.

[0072] Step S240 : If the range extender is started after the range-extended vehicle is awakened, the average fuel consumption displayed after the range-extended vehicle is awakened is obtained.

[0073] Step S250, compare the average fuel consumption with the average fuel consumption per unit mileage L of the vehicle; if the average fuel consumption is greater than the average fuel consumption per unit mileage L of the vehicle, use the average fuel consumption as the energy consumption baseline value; otherwise, use the average fuel consumption per unit mileage L of the vehicle as the energy consumption baseline value.

[0074] After the energy consumption reference value is determined, the currently determined initial average electricity consumption and initial average fuel consumption may be calibrated using the energy consumption reference value.

[0075] The following describes how to determine the initial average power consumption.

[0076] In the embodiment of the present application, the vehicle calibration parameters include: the average power consumption per unit mileage M of the vehicle and the preset initial distance traveled by the vehicle. The vehicle energy consumption parameters include: the real-time voltage and real-time current of the battery pack.

[0077] Figure 34 is a flow chart of the steps for determining the initial average power consumption according to one embodiment of the present application.

[0078] Step S310 , integrally calculating the actual power consumption O of the extended-range vehicle based on the real-time voltage and real-time current of the battery pack; and integrally calculating the actual mileage P of the extended-range vehicle based on the real-time speed of the extended-range vehicle.

[0079] The real-time voltage, current, and speed can be collected during each sampling period within the software's operating cycle. The software operating cycle is the period from when the EREV is awakened to the start of the current sampling period. The length of the sampling period can be determined based on requirements.

[0080] In step S320 , a first candidate average power consumption Q corresponding to the extended-range vehicle is calculated using an average calculation method based on the average power consumption per unit mileage M of the extended-range vehicle, the initial distance traveled by the vehicle, the actual power consumption O, and the actual mileage P.

[0081] For example, the following formula is used to calculate the average power consumption Q (unit: kwh / 100km) of the first candidate:

[0082]

[0083] Step S330 : Calculating a second candidate average power consumption R corresponding to the extended-range vehicle based on the actual power consumption O and the actual mileage P of the extended-range vehicle.

[0084] For example, the following formula is used to calculate the second candidate average power consumption R (unit: kwh / 100km):

[0085]

[0086] Step S340: If the range extender is started when the range-extended vehicle is traveling in pure electric mode, the minimum value between the first candidate average power consumption Q and the second candidate average power consumption R is used as the initial average power consumption Min(Q, R); if the range extender is started after the range-extended vehicle is awakened, the second candidate average power consumption R is used as the initial average power consumption corresponding to the range-extended vehicle.

[0087] The following describes how to determine the initial average fuel consumption.

[0088] In an embodiment of the present application, the vehicle calibration parameters include: the average fuel consumption per unit mileage L of the vehicle and the preset initial distance traveled by the vehicle; the vehicle energy consumption parameters include: the real-time fuel injection amount of the extended-range vehicle.

[0089] Figure 44 is a flow chart of the steps for determining the initial average fuel consumption according to one embodiment of the present application.

[0090] Step S410 , integrally calculating the real fuel consumption U of the extended-range vehicle according to the real-time fuel injection amount of the extended-range vehicle; and integrally calculating the real mileage P of the extended-range vehicle according to the real-time vehicle speed of the extended-range vehicle.

[0091] The real-time fuel injection volume can be the fuel injection volume collected during each sampling period within the software's operating cycle. The software operating cycle is the period from when the EREV is awakened to the start of the current sampling period. The length of the sampling period can be determined based on demand.

[0092] Step S420 , using an average calculation method, calculates a first candidate average fuel consumption corresponding to the extended-range vehicle according to the average fuel consumption per unit mileage L of the extended-range vehicle, the initial distance traveled by the vehicle, the actual fuel consumption U, and the actual mileage P.

[0093] For example, the following formula is used to calculate the average fuel consumption T (unit: kwh / 100km) of the first candidate:

[0094]

[0095] Step S430 , calculating a second candidate average fuel consumption value corresponding to the extended-range vehicle according to the actual fuel consumption U and the actual mileage P of the extended-range vehicle.

[0096] For example, the second candidate average fuel consumption V (unit: kwh / 100km) is calculated using the following formula:

[0097]

[0098] Step S440 : Taking the minimum value Min(T, V) between the first candidate average fuel consumption and the second candidate average fuel consumption as the initial average fuel consumption corresponding to the extended-range vehicle.

[0099] After determining the current initial average electricity consumption and initial average fuel consumption of the extended-range vehicle, the initial average electricity consumption and initial average fuel consumption are calibrated based on the current state of the extended-range vehicle using an energy consumption reference value corresponding to the state.

[0100] In one case, if the range extender is started when the range-extended vehicle is running purely on electricity, the following calibration steps are used to calibrate the initial average electricity consumption and the initial average fuel consumption:

[0101] Step S1, calculating the sum of the initial average electricity consumption and the initial average fuel consumption converted into electricity consumption.

[0102] Step S2: If the sum is less than or equal to the average power consumption M per unit mileage of the vehicle, the initial average power consumption is used as the average power consumption, and the initial average fuel consumption is used as the average fuel consumption.

[0103] In other words, if (Min(Q,R)+Min(T,V)*N)≤M, then Min(Q,R) is directly output as the average power consumption and Min(T,V) as the average fuel consumption. N is the preset fuel-to-electricity conversion factor.

[0104] Step S3. If the sum is greater than the average electricity consumption M per unit mileage of the vehicle, then when the average electricity consumption M per unit mileage of the vehicle is used as the energy consumption reference value, the initial average electricity consumption is used as the average electricity consumption, the difference between the initial average electricity consumption and the energy consumption reference value is converted into fuel consumption, and the converted fuel consumption is used as the average fuel consumption; when the average fuel consumption L per unit mileage of the vehicle is used as the energy consumption reference value, the difference between the initial average electricity consumption and the energy consumption reference value is converted into electricity consumption, and the converted electricity consumption is used as the average electricity consumption, and the initial average fuel consumption is used as the average fuel consumption.

[0105] That is to say, if (Min(Q,R)+Min(T,V)*N)>M, the average electricity consumption and average fuel consumption are processed based on the energy consumption reference value S. When M is used as the energy consumption reference value S, Min(Q,R) is output as the average electricity consumption, and (Min(Q,R)-S) / N is output as the average fuel consumption; when L is used as the energy consumption reference value S, Min(T,V) is output as the average fuel consumption, and (Min(T,V)-S)*N is output as the average electricity consumption.

[0106] When the range extender is started when the extended-range vehicle is running on pure electricity, if the sum of the initial average electricity consumption and the initial average fuel consumption converted to electricity consumption is less than or equal to the vehicle's average electricity consumption per unit mileage M, the initial average electricity consumption can be directly used as the average electricity consumption, and the initial average fuel consumption can be used as the average fuel consumption; otherwise, the initial average electricity consumption and the initial average fuel consumption should be calibrated so that the calibrated average energy consumption (average electricity consumption + average fuel consumption) is maintained at the energy consumption benchmark value.

[0107] In another case, if the range extender is started after the range-extended vehicle wakes up, the initial average electric consumption and the initial average fuel consumption are calibrated using the following calibration steps:

[0108] Step S1, calculating the sum of the initial average fuel consumption and the initial average electricity consumption converted into fuel consumption.

[0109] Step S2: If the sum is less than or equal to the average fuel consumption per unit mileage of the vehicle L, the initial average fuel consumption is used as the average fuel consumption, and the initial average power consumption is used as the average power consumption.

[0110] That is to say, if Min(T,V)+R / N≤L, then directly output Min(T,V) as the average fuel consumption and output R as the average power consumption.

[0111] Step S3: If the sum is greater than the average fuel consumption per unit mileage of the vehicle L, the difference between the initial average fuel consumption and the average fuel consumption per unit mileage of the vehicle L is converted into electricity consumption and the converted electricity consumption is used as the average electricity consumption, and the average fuel consumption per unit mileage of the vehicle L is used as the average fuel consumption.

[0112] That is, if Min(T,V)+R / N>L, then L is output as the average fuel consumption, and (Min(T,V)-L)*N is output as the average electricity consumption. If (Min(T,V)-L)*N is a negative number, then the absolute value is output.

[0113] In the embodiment of the present application, when the range extender is started after the range-extended vehicle wakes up, the range extender is used to generate electricity and drive the vehicle mainly. Even if the battery pack briefly participates in driving, the battery is charged to maintain power balance when the vehicle driving power demand decreases. Therefore, when the sum of the initial average fuel consumption and the initial average power consumption converted into fuel consumption is less than or equal to the vehicle's average fuel consumption per unit mileage L, the initial average power consumption and the initial average fuel consumption can be directly output; otherwise, the initial average power consumption and the initial average fuel consumption need to be calibrated so that the average energy consumption (average power consumption + average fuel consumption) obtained after calibration can be maintained at the initial average fuel consumption.

[0114] The embodiments of the present application adopt different calibration methods according to the different states of the extended vehicle when the range extender is started, so that the average energy consumption output by the extended-range vehicle can be maintained at a certain level, so that the average energy consumption output by the extended-range vehicle is close to its actual average energy consumption per 100 kilometers, providing users with more reference energy consumption parameters.

[0115] Furthermore, in the embodiments of the present application, after the extended-range vehicle is awakened, if the range extender activation conditions are not met, the extended-range vehicle may initially operate on pure electric power. When the vehicle is in the driving gear (D / R gear), the initial average power consumption of the extended-range vehicle can be determined. During this period, due to the short distance traveled by the vehicle, a high amount of energy is consumed when pushing the vehicle from a standstill to a certain speed. This can cause the initial average power consumption to deviate from the vehicle's actual energy consumption when the distance traveled is short after the trip reset. Furthermore, after the range extender is activated, the battery pack and the range extender jointly drive the vehicle, resulting in an excessively high sum of the vehicle's average power consumption and average fuel consumption. This embodiment, through calibration using an energy consumption baseline value, can avoid this problem of average energy consumption deviating from the vehicle's actual energy consumption per 100 kilometers.

[0116] Furthermore, in the embodiment of the present application, after the extended-range vehicle is awakened, if the range extender start-up conditions are met, the range extender will be started even if the extended-range vehicle is stationary, so as to sacrifice NVH to ensure the maintenance of power. Furthermore, in this case, there are two situations when the extended-range vehicle updates the current trip energy consumption information for the first time: only the average fuel consumption is updated (after the vehicle is awakened, only the range extender generates electricity to drive the vehicle), or both the average power consumption and the average fuel consumption are updated (the energy demand after the vehicle is started is high, and the battery pack needs to output additional power to support the vehicle's travel). In this way, there is a situation where both the battery pack and the range extender are working. After the average power consumption and the average fuel consumption of the whole vehicle are superimposed, the average energy consumption will be higher than the actual energy consumption per 100 kilometers of the whole vehicle. At this time, this embodiment uses the energy consumption reference value to calibrate the initial average power consumption and the initial average fuel consumption, so that the average power consumption and the average fuel consumption obtained after calibration are close to the actual energy consumption per 100 kilometers of the whole vehicle.

[0117] Furthermore, the embodiment of the present application adopts an averaging method when calculating the initial average power consumption and the initial average fuel consumption. The averaging method can make the initial average power consumption and the initial average fuel consumption remain relatively stable at different times. Taking the calculation of the initial average power consumption as an example, the present embodiment adopts the average power consumption M per unit mileage of the vehicle to participate in the averaging calculation, and takes the smaller calculated value of the first candidate average power consumption Q and the second candidate average power consumption R to output the initial average power consumption Min(Q, R). Among them, the first candidate average power consumption Q is a value calculated using the averaging algorithm, which can reflect the power consumption over a period of time. The second candidate average power consumption R is the average power consumption at a time point, and the changes at different times are not stable enough, sometimes large and sometimes small. Therefore, the embodiment of the present application selects the minimum value of Q and R as the initial average power consumption, so that the initial average power consumption can remain relatively stable at different times.

[0118] In an embodiment of the present application, the real mileage P of the extended-range vehicle is calculated integrally based on the real-time speed of the extended-range vehicle; starting from when the real mileage P is less than the initial vehicle distance traveled preset in the vehicle calibration parameters, the initial average power consumption and the initial average fuel consumption are calibrated using the energy consumption reference value until the real mileage P is greater than or equal to the initial vehicle distance traveled. After stopping the calibration, the initial average power consumption is directly used as the average power consumption, and the initial average fuel consumption is used as the average fuel consumption. Among them, the initial distance traveled by the vehicle is a preset value. The initial distance traveled by the vehicle can be an empirical value or a value obtained through experiments. This value will not be very large. If it is too large, it will cause the actual energy consumption of the vehicle to deviate from the actual value for a long time when it is very high. If it is too small, it will not play the role of averaging calculation. The initial distance traveled by the vehicle can be set to a value between 5km and 10km. Furthermore, when the range extender is started, if the actual distance traveled by the extended-range vehicle is relatively long, the value of the average fuel consumption plus the average electricity consumption will not be too large. If the actual distance traveled by the extended-range vehicle is relatively short, the value of the average fuel consumption plus the average electricity consumption will be relatively large. Therefore, the embodiment of the present application executes the calibration algorithm within the mileage range where the actual mileage P is less than the initial mileage traveled by the vehicle.

[0119] In order to solve the problem that after the existing extended-range vehicle is started, the battery pack and the extended-range power generation jointly drive the vehicle, and the energy consumption is too high after the average power consumption and the average fuel consumption of the whole vehicle are added together, the embodiment of the present application proposes a method for calculating the average power consumption and the average fuel consumption of the current trip of the extended-range vehicle. When calculating the average power consumption and the average fuel consumption of the extended-range vehicle, the battery status and vehicle mode of the vehicle at the beginning of the current trip are taken into consideration, and the range extender is controlled in combination with the vehicle speed. While improving the vehicle NVH and reducing energy consumption, the average power consumption and the average fuel consumption are accurately calculated to ensure that the sum of the average power consumption and the average fuel consumption displayed in the calculated output is consistent with the actual energy consumption status of the vehicle per 100 kilometers, providing a reasonable reference value for the user to avoid misunderstanding.

[0120] An embodiment of the present application also provides an average energy consumption calibration device for a range-extended vehicle. Figure 5 2 is a structural diagram of an average energy consumption calibration device for a range-extended vehicle according to an embodiment of the present application.

[0121] The average energy consumption calibration device of the range-extended vehicle includes:

[0122] The start-up determination module 510 is configured to start the range extender when it is determined that the range extender vehicle meets the preset range extender start-up conditions and determine the energy consumption reference value based on the vehicle calibration parameters of the range extender vehicle and the state of the range extender vehicle when the range extender is started.

[0123] The energy consumption determination module 520 is used to determine the initial average power consumption and initial average fuel consumption corresponding to the range-extended vehicle according to the vehicle calibration parameters, vehicle energy consumption parameters and real-time vehicle speed of the range-extended vehicle after starting the range-extended vehicle.

[0124] The energy consumption calibration module 530 is configured to calibrate the initial average electricity consumption and the initial average fuel consumption using the energy consumption reference value to obtain the average electricity consumption and the average fuel consumption of the extended-range vehicle.

[0125] The functions of the device described in the embodiment of the present application have been described in the above method embodiment. Therefore, for any details not fully described in the description of this embodiment, please refer to the relevant description in the above embodiment and will not be repeated here.

[0126] The present application also provides an average energy consumption calibration device for a range-extended vehicle, such as Figure 6 , which is a structural diagram of an average energy consumption calibration device for a range-extended vehicle according to an embodiment of the present application.

[0127] The average energy consumption calibration device for the extended-range vehicle includes: a processor 610, a communication interface 620, a memory 630, and a communication bus 640. The processor 610, the communication interface 620, and the memory 630 communicate with each other via the communication bus 640.

[0128] The memory 630 is used to store computer programs.

[0129] In one embodiment of the present application, the processor 610 is configured to, when executing the program stored in the memory 630, implement the average energy consumption calibration method for the extended-range vehicle provided by any of the aforementioned method embodiments, including: when it is determined that the extended-range vehicle meets a preset range extender start condition, starting the range extender and determining an energy consumption reference value based on the vehicle calibration parameters of the extended-range vehicle and the state of the extended-range vehicle when the range extender is started; after starting the range extender, determining the initial average power consumption and initial average fuel consumption corresponding to the extended-range vehicle based on the vehicle calibration parameters, vehicle energy consumption parameters, and real-time vehicle speed of the extended-range vehicle; and calibrating the initial average power consumption and the initial average fuel consumption using the energy consumption reference value to obtain the average power consumption and average fuel consumption of the extended-range vehicle.

[0130] Wherein, the determining whether the range-extended vehicle meets the preset range-extender start-up condition includes: after the range-extended vehicle is awakened, reading the current vehicle mode, battery pack power and real-time vehicle speed of the range-extended vehicle in real time; obtaining the target battery state of charge value and speed threshold corresponding to the current vehicle mode of the range-extended vehicle, and determining the power threshold corresponding to the vehicle mode at the current ambient temperature; wherein the target battery state of charge value is greater than the power threshold; if the battery pack power is less than or equal to the power threshold, or, when the battery pack power is greater than the power threshold and less than the target battery state of charge value, if the range-extended vehicle is stationary or the real-time vehicle speed is greater than the speed threshold, then it is determined that the range-extender start-up condition is met; otherwise, it is determined that the range-extender start-up condition is not met.

[0131] Wherein, before determining the power threshold corresponding to the vehicle mode at the current ambient temperature, the method further includes: controlling the range-extended vehicle to travel a preset mileage at the speed threshold in the vehicle mode within each preset ambient temperature range; wherein the power of the battery pack of the range-extended vehicle is the target battery state of charge value corresponding to the vehicle mode, and the interior temperature of the range-extended vehicle is the optimal operating temperature corresponding to the battery pack; during the driving of the range-extended vehicle, prohibiting the range extender from starting and obtaining the battery state of charge value consumed by the battery pack within the preset mileage; and using the difference between the target battery state of charge value and the battery state of charge value as the power threshold corresponding to the vehicle mode in the ambient temperature range.

[0132] Among them, the vehicle calibration parameters include: the average power consumption per unit mileage of the vehicle and the preset initial distance traveled by the vehicle; the vehicle energy consumption parameters include: the real-time voltage and real-time current of the battery pack; the initial average power consumption and initial average fuel consumption corresponding to the extended-range vehicle are determined based on the vehicle calibration parameters, vehicle energy consumption parameters and real-time speed of the extended-range vehicle, including: integrating and calculating the actual power consumption of the extended-range vehicle based on the real-time voltage and real-time current of the battery pack; and integrating and calculating the actual mileage of the extended-range vehicle based on the real-time speed of the extended-range vehicle; adopting a pull-average calculation method, based on the vehicle unit mileage of the extended-range vehicle The first candidate average power consumption corresponding to the extended-range vehicle is calculated based on the average power consumption per mile, the initial distance traveled by the vehicle, the actual power consumption and the actual mileage; the second candidate average power consumption corresponding to the extended-range vehicle is calculated based on the actual power consumption and the actual mileage of the extended-range vehicle; if the range extender is started when the extended-range vehicle is traveling in pure electric mode, the minimum value between the first candidate average power consumption and the second candidate average power consumption is used as the initial average power consumption; if the range extender is started after the extended-range vehicle is awakened, the second candidate average power consumption is used as the initial average power consumption corresponding to the extended-range vehicle.

[0133] wherein the vehicle calibration parameters include: an average fuel consumption per unit mileage of the vehicle and a preset initial distance traveled by the vehicle; the vehicle energy consumption parameters include: a real-time fuel injection amount of the extended-range vehicle; and determining the initial average electricity consumption and initial average fuel consumption corresponding to the extended-range vehicle based on the vehicle calibration parameters, the vehicle energy consumption parameters, and the real-time vehicle speed of the extended-range vehicle includes: integrally calculating the real fuel consumption of the extended-range vehicle based on the real-time fuel injection amount of the extended-range vehicle; and integrally calculating the real mileage of the extended-range vehicle based on the real-time vehicle speed of the extended-range vehicle; calculating a first candidate average fuel consumption corresponding to the extended-range vehicle based on the average fuel consumption per unit mileage of the extended-range vehicle, the initial distance traveled by the vehicle, the real fuel consumption, and the real mileage using a rolling average calculation method; calculating a second candidate average fuel consumption corresponding to the extended-range vehicle based on the real fuel consumption and the real mileage of the extended-range vehicle; and taking the minimum value of the first candidate average fuel consumption and the second candidate average fuel consumption as the initial average fuel consumption corresponding to the extended-range vehicle.

[0134] Wherein, the vehicle calibration parameters include: the average fuel consumption per unit mileage of the vehicle and the average electricity consumption per unit mileage of the vehicle; the energy consumption reference value is determined according to the vehicle calibration parameters of the extended-range vehicle and the state of the extended-range vehicle when the range extender is started, including: if the range extender is started when the extended-range vehicle is running purely on electric power, then according to the vehicle calibration parameters, vehicle energy consumption parameters and real-time vehicle speed of the extended-range vehicle, the initial average electricity consumption and initial average fuel consumption corresponding to the extended-range vehicle are determined; the initial average electricity consumption is compared with the initial average fuel consumption converted to electricity consumption; if the initial average electricity consumption is greater than If the initial average fuel consumption is converted into electricity consumption, the average electricity consumption per unit mileage of the vehicle is used as the energy consumption benchmark value; otherwise, the average fuel consumption per unit mileage of the vehicle is used as the energy consumption benchmark value; if the range extender is started after the extended-range vehicle is awakened, the average fuel consumption displayed after the extended-range vehicle is awakened is obtained; the average fuel consumption is compared with the average fuel consumption per unit mileage of the vehicle; if the average fuel consumption is greater than the average fuel consumption per unit mileage of the vehicle, the average fuel consumption is used as the energy consumption benchmark value; otherwise, the average fuel consumption per unit mileage of the vehicle is used as the energy consumption benchmark value.

[0135] Among them, if the range extender is started when the extended-range vehicle is traveling in pure electric mode, the use of the energy consumption reference value to calibrate the initial average electric consumption and the initial average fuel consumption includes: calculating the sum of the initial average electric consumption and the initial average fuel consumption converted into electric consumption; if the sum is less than or equal to the average electric consumption per unit mileage of the vehicle, using the initial average electric consumption as the average electric consumption, and using the initial average fuel consumption as the average fuel consumption; if the sum is greater than the average electric consumption per unit mileage of the vehicle, when the average electric consumption per unit mileage of the vehicle is used as the energy consumption reference value, using the initial average electric consumption as the average electric consumption, converting the difference between the initial average electric consumption and the energy consumption reference value into fuel consumption, and using the converted fuel consumption as the average fuel consumption; when the average fuel consumption per unit mileage of the vehicle is used as the energy consumption reference value, converting the difference between the initial average electric consumption and the energy consumption reference value into electric consumption, using the converted electric consumption as the average electric consumption, and using the initial average fuel consumption as the average fuel consumption.

[0136] Among them, if the range extender is started after the range-extended vehicle is awakened, the use of the energy consumption reference value to calibrate the initial average electricity consumption and the initial average fuel consumption includes: calculating the sum of the initial average fuel consumption and the initial average electricity consumption converted into fuel consumption; if the sum is less than or equal to the average fuel consumption per unit mileage of the vehicle, using the initial average fuel consumption as the average fuel consumption, and using the initial average electricity consumption as the average electricity consumption; if the sum is greater than the average fuel consumption per unit mileage of the vehicle, converting the difference between the initial average fuel consumption and the average fuel consumption per unit mileage of the vehicle into electricity consumption and using the converted electricity consumption as the average electricity consumption, and using the average fuel consumption per unit mileage of the vehicle as the average fuel consumption.

[0137] The calibrating the initial average electricity consumption and the initial average fuel consumption by using the energy consumption reference value includes: integrally calculating the actual mileage of the extended-range vehicle according to the real-time speed of the extended-range vehicle; and calibrating the initial average electricity consumption and the initial average fuel consumption by using the energy consumption reference value starting from when the actual mileage is less than the initial vehicle traveled distance preset in the vehicle calibration parameters, until the actual mileage is greater than or equal to the initial vehicle traveled distance.

[0138] The present application also provides a computer-readable storage medium storing a computer program. When executed by a processor, the computer program implements the steps of the method for calibrating the average energy consumption of a range-extended vehicle as provided in any of the aforementioned method embodiments. Since the method for calibrating the average energy consumption of a range-extended vehicle has been described in detail above, any details not fully described in this embodiment are referred to the relevant descriptions in the aforementioned embodiments and are not further elaborated here.

[0139] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0140] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, or of course, by hardware. Based on this understanding, the above technical solution, in essence, or the part that contributes to the relevant technology, can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiment.

[0141] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0142] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A method for calibrating the average energy consumption of a range-extended vehicle, characterized in that: include: When it is determined that the range-extended vehicle meets a preset range-extender start-up condition, starting the range-extender and determining an energy consumption reference value based on vehicle calibration parameters of the range-extended vehicle and a state of the range-extended vehicle when the range-extender is started; The vehicle calibration parameters include: the average fuel consumption per unit mileage of the vehicle and the average electricity consumption per unit mileage of the vehicle; the energy consumption reference value is determined according to the vehicle calibration parameters of the extended-range vehicle and the state of the extended-range vehicle when the range extender is started, including: if the range extender is started when the extended-range vehicle is running purely on electric power, then the initial average electricity consumption and initial average fuel consumption corresponding to the extended-range vehicle are determined according to the vehicle calibration parameters, vehicle energy consumption parameters and real-time vehicle speed of the extended-range vehicle; comparing the initial average electricity consumption with the initial average fuel consumption converted to electricity consumption; if the initial average electricity consumption is greater than the converted value, If the initial average fuel consumption is the electric consumption, the average electric consumption per unit mileage of the vehicle is used as the energy consumption reference value; otherwise, the average fuel consumption per unit mileage of the vehicle is used as the energy consumption reference value; if the range extender is started after the range-extended vehicle is awakened, the average fuel consumption displayed after the range-extended vehicle is awakened is obtained; the average fuel consumption is compared with the average fuel consumption per unit mileage of the vehicle; if the average fuel consumption is greater than the average fuel consumption per unit mileage of the vehicle, the average fuel consumption is used as the energy consumption reference value; otherwise, the average fuel consumption per unit mileage of the vehicle is used as the energy consumption reference value; After starting the range extender, determining the initial average power consumption and initial average fuel consumption corresponding to the range-extended vehicle based on the vehicle calibration parameters, vehicle energy consumption parameters, and real-time vehicle speed of the range-extended vehicle; The initial average electricity consumption and the initial average fuel consumption are calibrated using the energy consumption reference value to obtain the average electricity consumption and the average fuel consumption of the range-extended vehicle.

2. The method according to claim 1, characterized in that The determining whether the range-extended vehicle meets a preset range-extender start-up condition includes: After the range-extended vehicle is awakened, the current vehicle mode, battery pack power, and real-time vehicle speed of the range-extended vehicle are read in real time; Obtaining a target battery state of charge value and a vehicle speed threshold corresponding to a current vehicle mode of the extended-range vehicle, and determining a power threshold corresponding to the vehicle mode at a current ambient temperature; wherein the target battery state of charge value is greater than the power threshold; If the battery pack power is less than or equal to the power threshold, or, when the battery pack power is greater than the power threshold and less than the target battery state of charge value, if the range-extended vehicle is stationary or the real-time vehicle speed is greater than the vehicle speed threshold, it is determined that the range extender start-up condition is met; otherwise, it is determined that the range extender start-up condition is not met.

3. The method according to claim 2, characterized in that Before determining the power threshold corresponding to the vehicle mode at the current ambient temperature, the method further includes: within each preset ambient temperature range, controlling the range-extended vehicle to travel a preset mileage at the speed threshold in the vehicle mode; wherein the charge level of the battery pack of the range-extended vehicle is a target battery state of charge value corresponding to the vehicle mode, and the interior temperature of the range-extended vehicle is an optimal operating temperature corresponding to the battery pack; During the driving of the extended-range vehicle, prohibiting the range extender from starting and obtaining a battery state of charge value of the battery pack consumed within the preset mileage; A difference between the target battery state of charge value and the battery state of charge value is used as a power threshold corresponding to the vehicle mode in the ambient temperature range.

4. The method according to claim 1, wherein The vehicle calibration parameters include: the average power consumption per unit mileage of the vehicle and the preset initial distance traveled by the vehicle; The vehicle energy consumption parameters include: real-time voltage and real-time current of the battery pack; The determining, based on the vehicle calibration parameters, vehicle energy consumption parameters, and real-time vehicle speed of the extended-range vehicle, the initial average power consumption and initial average fuel consumption corresponding to the extended-range vehicle comprises: Integrating and calculating the actual power consumption of the extended-range vehicle based on the real-time voltage and real-time current of the battery pack; and integrating and calculating the actual mileage of the extended-range vehicle based on the real-time speed of the extended-range vehicle; Calculating a first candidate average power consumption corresponding to the extended-range vehicle by using an averaging calculation method based on the average power consumption per unit mileage of the extended-range vehicle, the initial distance traveled by the vehicle, the actual power consumption, and the actual mileage; Calculating a second candidate average power consumption corresponding to the extended-range vehicle based on the actual power consumption and the actual mileage of the extended-range vehicle; If the range extender is started when the range-extended vehicle is running in pure electric mode, the minimum value between the first candidate average power consumption and the second candidate average power consumption is used as the initial average power consumption; If the range extender is started after the range-extended vehicle is awakened, the second candidate average power consumption is used as the initial average power consumption corresponding to the range-extended vehicle.

5. The method according to claim 1, wherein The vehicle calibration parameters include: the average fuel consumption per unit mileage of the vehicle and the preset initial distance traveled by the vehicle; The vehicle energy consumption parameters include: the real-time fuel injection volume of the range-extended vehicle; The determining, based on the vehicle calibration parameters, vehicle energy consumption parameters, and real-time vehicle speed of the extended-range vehicle, the initial average power consumption and initial average fuel consumption corresponding to the extended-range vehicle comprises: The real fuel consumption of the extended-range vehicle is calculated by integration based on the real-time fuel injection amount of the extended-range vehicle; and the real mileage of the extended-range vehicle is calculated by integration based on the real-time vehicle speed of the extended-range vehicle; Calculating a first candidate average fuel consumption corresponding to the extended-range vehicle by using an averaging calculation method based on the average fuel consumption per unit mileage of the extended-range vehicle, the initial distance traveled by the vehicle, the actual fuel consumption, and the actual mileage; Calculating a second candidate average fuel consumption corresponding to the extended-range vehicle based on the actual fuel consumption of the extended-range vehicle and the actual mileage; The minimum value of the first candidate average fuel consumption and the second candidate average fuel consumption is used as the initial average fuel consumption corresponding to the extended-range vehicle.

6. The method according to claim 1, characterized in that If the range extender is started when the range-extended vehicle is running in pure electric mode, calibrating the initial average electricity consumption and the initial average fuel consumption using the energy consumption reference value includes: Calculating a sum of the initial average electricity consumption and the initial average fuel consumption converted into electricity consumption; If the sum is less than or equal to the average power consumption per unit mileage of the vehicle, the initial average power consumption is used as the average power consumption, and the initial average fuel consumption is used as the average fuel consumption; If the sum is greater than the average electricity consumption per unit mileage of the vehicle, then when the average electricity consumption per unit mileage of the vehicle is used as the energy consumption reference value, the initial average electricity consumption is used as the average electricity consumption, the difference between the initial average electricity consumption and the energy consumption reference value is converted into fuel consumption, and the converted fuel consumption is used as the average fuel consumption; when the average fuel consumption per unit mileage of the vehicle is used as the energy consumption reference value, the difference between the initial average electricity consumption and the energy consumption reference value is converted into electricity consumption, and the converted electricity consumption is used as the average electricity consumption, and the initial average fuel consumption is used as the average fuel consumption.

7. The method according to claim 1, characterized in that If the range extender is started after the range-extended vehicle is awakened, calibrating the initial average electricity consumption and the initial average fuel consumption using the energy consumption reference value includes: Calculating a sum of the initial average fuel consumption and the initial average electricity consumption converted into fuel consumption; If the sum is less than or equal to the average fuel consumption per unit mileage of the vehicle, the initial average fuel consumption is used as the average fuel consumption, and the initial average power consumption is used as the average power consumption; If the sum is greater than the vehicle's average fuel consumption per mileage, the difference between the initial average fuel consumption and the vehicle's average fuel consumption per mileage is converted into electricity consumption and the converted electricity consumption is used as the average electricity consumption, and the vehicle's average fuel consumption per mileage is used as the average fuel consumption.

8. The method according to claim 1, characterized in that The step of calibrating the initial average electricity consumption and the initial average fuel consumption by using the energy consumption reference value includes: Calculating the actual mileage of the extended-range vehicle by integrating the real-time speed of the extended-range vehicle; Starting from when the actual mileage is less than the vehicle's initial traveled distance preset in the vehicle calibration parameters, the initial average electricity consumption and the initial average fuel consumption are calibrated using the energy consumption reference value until the actual mileage is greater than or equal to the vehicle's initial traveled distance.

9. An average energy consumption calibration device for a range-extended vehicle, characterized in that: include: a start-up determination module, configured to start the range extender when it is determined that the range extender vehicle meets a preset range extender start-up condition, and determine an energy consumption reference value based on the vehicle calibration parameters of the range extender vehicle and the state of the range extender vehicle when the range extender is started; The vehicle calibration parameters include: the average fuel consumption per unit mileage of the vehicle and the average electricity consumption per unit mileage of the vehicle; the energy consumption reference value is determined according to the vehicle calibration parameters of the extended-range vehicle and the state of the extended-range vehicle when the range extender is started, including: if the range extender is started when the extended-range vehicle is running purely on electric power, then the initial average electricity consumption and initial average fuel consumption corresponding to the extended-range vehicle are determined according to the vehicle calibration parameters, vehicle energy consumption parameters and real-time vehicle speed of the extended-range vehicle; comparing the initial average electricity consumption with the initial average fuel consumption converted to electricity consumption; if the initial average electricity consumption is greater than the converted value, If the initial average fuel consumption is the electric consumption, the average electric consumption per unit mileage of the vehicle is used as the energy consumption reference value; otherwise, the average fuel consumption per unit mileage of the vehicle is used as the energy consumption reference value; if the range extender is started after the range-extended vehicle is awakened, the average fuel consumption displayed after the range-extended vehicle is awakened is obtained; the average fuel consumption is compared with the average fuel consumption per unit mileage of the vehicle; if the average fuel consumption is greater than the average fuel consumption per unit mileage of the vehicle, the average fuel consumption is used as the energy consumption reference value; otherwise, the average fuel consumption per unit mileage of the vehicle is used as the energy consumption reference value; an energy consumption determination module, configured to determine, after starting the range extender, an initial average power consumption and an initial average fuel consumption corresponding to the range extender vehicle based on the vehicle calibration parameters, vehicle energy consumption parameters, and real-time vehicle speed of the range extender vehicle; The energy consumption calibration module is used to calibrate the initial average power consumption and the initial average fuel consumption using the energy consumption reference value to obtain the average power consumption and the average fuel consumption of the extended-range vehicle.

10. A range-extended vehicle, characterized in that: include: at least one communication interface; at least one bus connected to the at least one communication interface; at least one processor coupled to the at least one bus; At least one memory connected to the at least one bus, wherein the processor is configured to: execute the average energy consumption calibration program of the extended-range vehicle stored in the memory to implement the average energy consumption calibration method of the extended-range vehicle according to any one of claims 1-8.

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